Vulnerability Description
Dokku is a docker-powered PaaS. Prior to 0.38.2, the git:from-archive and certs:add commands extract user-supplied tar/zip archives into temporary directories without sanitizing member paths or preventing symlink traversal. GNU tar creates symlinks during extraction and follows them for subsequent entries, allowing an attacker to write arbitrary files anywhere writable by the dokku user — including overwriting ~/.ssh/authorized_keys to gain unrestricted shell access. This vulnerability is fixed in 0.38.2.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dokku | Dokku | < 0.38.2 |
Related Weaknesses (CWE)
References
- https://github.com/dokku/dokku/pull/8591Issue TrackingPatch
- https://github.com/dokku/dokku/security/advisories/GHSA-j6qq-xg73-ghqgVendor Advisory
FAQ
What is CVE-2026-45405?
CVE-2026-45405 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Dokku is a docker-powered PaaS. Prior to 0.38.2, the git:from-archive and certs:add commands extract user-supplied tar/zip archives into temporary directories without sanitizing member paths or preven...
How severe is CVE-2026-45405?
CVE-2026-45405 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-45405?
Check the references section above for vendor advisories and patch information. Affected products include: Dokku Dokku.